Apoptosis is an active programmed cell death, consisting of an essential sequence of physiological processes caused in response to specific stimuli [ 20].
Our scanning mutagenesis experiments have delineated specific essential sequences in each ARS tested while other similar sites are not required for function.
The drawback of enhancer trap vectors is that they usually are not mutagenic and only induce mutations by integrations into exons or other essential sequences of genes (reviewed in [ 16]).
Such a mechanism would surely result in loss of non essential sequence and evolution towards more compact mitochondrial genomes as observed in mammalian mitochondrial genomes [ 43].
The Saccharomyces Genome Database (http://www.yeastgenome.org) identifies eight candidates in yeast with the essential sequence features of arrestins: Ecm21, Csr2, Aly1, Aly2, Rod1, Rog3, Ygr068c and Rim8.
Identifying local similarity between two or more sequences, or identifying repeats occurring at least twice in a sequence, is an essential part in the analysis of biological sequences and of their phylogenetic relationship.
The essential sequence is universal.
Controlled catalyst deactivation in the laboratory is an essential component in the sequence of tests required for the prediction of catalyst performance in a commercial FCC unit.
This allows one to place a gene's observed variation in the context of what was successfully sequenced, an essential requirement in clinical genomics.
This should provide increased sensitivity for the detection of low prevalence mutations, an essential feature in the sequencing of a heterogeneous cancer sample.
Computational simulations of the carapace subjected to indentation loading are performed and it is found that the layer sequence plays an essential role in the mechanical properties of the carapace.
